frictionatevt.摩擦(擦胶)
frictionn.摩擦;摩擦力;分歧
frictional theory摩擦理论
frictionof motion滑动摩擦,运动摩擦
frictional damper摩擦阻尼器
friction twisting摩擦加捻
friction coupling摩擦联轴节
friction and wear摩擦磨损
friction disc saw圆盘式摩擦锯
friction of vowel带擦元音
friction squeezer摩擦榨取机
friction climbing摩擦攀登